Tar (for "Tape ARchive") is a UNIX
shell
command that creates a single file called an "archive" from
a number of specified files or extracts the files from such an archive. A tar archive has the file
suffix ".tar". The files in a tar archive are not compressed, just gathered together in one
file.
The name is derived from a time when files were commonly backed up on and occasionally retrieved
from magnetic tape as a permanent storage device. (They still are in some data centers.) A tar
archive is perhaps more frequently used today to transfer files among UNIX systems. A popular
archive handler for Windows systems, WinZIP, can be
used to extract the files from a tar archive.
Tarball is a jargon term for a tar archive, suggesting "a bunch of files stuck together
in a ball of tar."
This was last updated in September 2005
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